25651323 has 32 divisors (see below), whose sum is σ = 39635520. Its totient is φ = 16586208.

The previous prime is 25651319. The next prime is 25651337. The reversal of 25651323 is 32315652.

25651323 is a `hidden beast` number, since 2 + 5 + 651 + 3 + 2 + 3 = 666.

It is not a de Polignac number, because 25651323 - 2² = 25651319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (25651343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80761 + ... + 81077.

It is an arithmetic number, because the mean of its divisors is an integer number (1238610).

Almost surely, 2^25651323 is an apocalyptic number.

25651323 is a deficient number, since it is larger than the sum of its proper divisors (13984197).

25651323 is an frugal number, since it uses more digits than its factorization.

25651323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 357 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 25651323 is about 5064.7135160836. The cubic root of 25651323 is about 294.9193421162.

Adding to 25651323 its reverse (32315652), we get a palindrome (57966975).

The spelling of 25651323 in words is "twenty-five million, six hundred fifty-one thousand, three hundred twenty-three".